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Can an array be top-level JSON-text?
...ed value."
ECMA-404: Any JSON value. "A JSON text is a sequence of tokens formed from Unicode code points that conforms to the JSON value
grammar."
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...
“Application tried to present modally an active controller”?
...trollers instantiated like so:
UIViewController* vc1 = [[UIViewController alloc] init];
UIViewController* vc2 = [[UIViewController alloc] init];
UIViewController* vc3 = [[UIViewController alloc] init];
You have added them to a tab bar like this:
UITabBarController* tabBarController = [[UITabBarC...
How can I measure the actual memory usage of an application or process?
...
With ps or similar tools you will only get the amount of memory pages allocated by that process. This number is correct, but:
does not reflect the actual amount of memory used by the application, only the amount of memory reserved for it
can be misleading if pages are shared, for example by s...
Must qualify the allocation with an enclosing instance of type GeoLocation
...No enclosing instance of type StackArrList is accessible. Must qualify the allocation with an enclosing instance of type StackArrList (e.g. x.new A() where x is an instance of StackArrList). and will not allow to make instance of Stack class
When you make the class Stack to static class Stack will ...
How do I build a numpy array from a generator?
... lists. This is necessary so that space for each item can be consecutively allocated in memory. Consecutive allocation is the key feature of numpy arrays: this combined with native code implementation let operations on them execute much quicker than regular lists.
Keeping this in mind, it is techni...
Adding iOS UITableView HeaderView (not section header)
...ller:
-(void)viewDidLoad
{
// ...
UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(XXX, YYY, XXX, YYY)];
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(XXX, YYY, XXX, YYY)];
[headerView addSubview:imageView];
UILabel *labelView = [[UILab...
convert a char* to std::string
...
@Madhatter it is a deep copy. The pointer allocation will remain, and the string will make itself a new allocation.
– moodboom
Dec 1 '17 at 12:43
...
What do the parentheses around a function name mean?
...heses, but expansion of a function-like macro only takes place if the next token is a left parenthesis (C99, 6.10.3§10), thus foo (int* bar) would get replaced, but not (foo) (int *bar) (the next token after foo is ))
– Virgile
Nov 28 '12 at 9:48
...
How to link Docker services across hosts?
...X),
# as long as the other nodes can reach it, it is fine.
$ swarm join --token=6856663cdefdec325839a4b7e1de38e8 --addr=<node_ip:2375>
# start the manager on any machine or your laptop
$ swarm manage --token=6856663cdefdec325839a4b7e1de38e8 --addr=<swarm_ip:swarm_port>
# use the regul...
grep exclude multiple strings
...e.txt:
abc
def
ghi
jkl
grep command using -E option with a pipe between tokens in a string:
grep -Ev 'def|jkl' filename.txt
prints:
abc
ghi
Command using -v option with pipe between tokens surrounded by parens:
egrep -v '(def|jkl)' filename.txt
prints:
abc
ghi
...